Fill it with fuel and crank away, it may take a bit to expel all the air or you can speed up the process by turning the ignition to on so the fuel pump starts and use the schrader valve on the fuel rail to get rid of the air.
Lack of fuel. Either the tank is empty, or the line from the tank to the filter is clogged.
The external tank will empty first.
After removing tank from car you can siphon fuel out.
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Start by check for: Empty fuel tank. Bad alternator and discharged battery. Broken timing belt.
empty fuel tank
Drive it.....
The fuel pump will still try to pump fuel even if the tank is empty.
By running your tank empty, you could possibly have sucked some sediment or debris that was at the bottom of your fuel tank into fuel line and fuel filter. If your vehicle is fuel injected, check your fuel pressure with a fuel pressure gauge. If your vehicle has a carburetor, you can still perform a fuel pressure test, or simply remove the fuel line and monitor fuel flow into a suitable container.
You'll need to empty the fuel tank first. Then lower it after disconnecting the electrical connection. The fuel pump can then be accessed from the top of the tank.
If the vehicle will stall and will not restart or appears to be out of fuel but the fuel gauge reads above empty, replace the fuel sensor assembly and auxiliary tank fuel level sensor if equipped. if not, replace the instrument cluster.
The Fuel pump is mounted in the fuel tank Make sure the tank is nearly empty as it is very heavy, even when empty. Drop the Fuel Tank, make sure you WD40 the bolts 1st as they tend to snap off.